Where to Watch Supergirl

Supergirl follows the adventures of Kara Zor-El, who comes to Earth to retrieve a power source and ends up becoming the hero Supergirl. The cast of Supergirl includes Helen Slater as Kara Zor-El / Supergirl, Faye Dunaway as Selena, Peter O'Toole as Zaltar, Hart Bochner as Ethan, Mia Farrow as Alura, Brenda Vaccaro as Bianca, Peter Cook as Nigel, Simon Ward as Zor-El, Marc McClure as Jimmy Olsen, Maureen Teefy as Lucy Lane, David Healy as Mr. Danvers, and Matt Frewer as Eddie, Truck Driver.

Supergirl is a 1984 superhero film featuring Helen Slater as Superman's cousin, Kara, who battles a wicked witch after coming to Earth in search of a powerful orb.